// SPDX-License-Identifier: GPL-2.0
/*
 * dts file for Hisilicon HiKey970 Development Board
 *
 * Copyright (C) 2016, Hisilicon Ltd.
 * Copyright (C) 2018, Linaro Ltd.
 *
 */

/dts-v1/;
#include <dt-bindings/gpio/gpio.h>

#include "hi3670.dtsi"
#include "hikey970-pinctrl.dtsi"

/ {
	model = "HiKey970";
	compatible = "hisilicon,hi3670-hikey970", "hisilicon,hi3670";

	aliases {
		mshc1 = &dwmmc1;
		mshc2 = &dwmmc2;
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
		serial4 = &uart4;
		serial5 = &uart5;
		serial6 = &uart6;       /* console UART */
	};

	chosen {
		stdout-path = "serial6:115200n8";
	};

	memory@0 {
		device_type = "memory";
		/* expect bootloader to fill in this region */
		reg = <0x0 0x0 0x0 0x0>;
	};

	sd_1v8: regulator-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
	};

	sd_3v3: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	wlan_en: wlan-en-1-8v {
		compatible = "regulator-fixed";
		regulator-name = "wlan-en-regulator";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;

		/* GPIO_051_WIFI_EN */
		gpio = <&gpio6 3 0>;

		/* WLAN card specific delay */
		startup-delay-us = <70000>;
		enable-active-high;
	};
};

/*
 * Legend: proper name = the GPIO line is used as GPIO
 *         NC = not connected (pin out but not routed from the chip to
 *              anything the board)
 *         "[PER]" = pin is muxed for [peripheral] (not GPIO)
 *         "" = no idea, schematic doesn't say, could be
 *              unrouted (not connected to any external pin)
 *         LSEC = Low Speed External Connector
 *         HSEC = High Speed External Connector
 *
 * Line names are taken from "hikey970-schematics.pdf" from HiSilicon.
 *
 * For the lines routed to the external connectors the
 * lines are named after the 96Boards CE Specification 1.0,
 * Appendix "Expansion Connector Signal Description".
 *
 * When the 96Board naming of a line and the schematic name of
 * the same line are in conflict, the 96Board specification
 * takes precedence, which means that the external UART on the
 * LSEC is named UART0 while the schematic and SoC names this
 * UART2. This is only for the informational lines i.e. "[FOO]",
 * the GPIO named lines "GPIO-A" thru "GPIO-L" are the only
 * ones actually used for GPIO.
 */
&gpio0 {
	/* GPIO_000-GPIO_007 */
	gpio-line-names =
		"",
		"TP901", /* TEST_MODE connected to TP901 */
		"",
		"GPIO_003_USB_HUB_RESET_N",
		"NC",
		"[AP_GPS_REF_CLK]",
		"[I2C3_SCL]",
		"[I2C3_SDA]";
};

&gpio1 {
	/* GPIO_008-GPIO_015 */
	gpio-line-names =
		"[UART0_CTS]", /* LSEC pin 3: GPIO_008_UART2_CTS_N */
		"[UART0_RTS]", /* LSEC pin 9: GPIO_009_UART2_RTS_N */
		"[UART0_TXD]", /* LSEC pin 5: GPIO_010_UART2_TXD */
		"[UART0_RXD]", /* LSEC pin 7: GPIO_011_UART2_RXD */
		"[USER_LED5]",
		"GPIO-I", /* LSEC pin 31: GPIO_013_CAM0_RST_N */
		"[USER_LED3]",
		"[USER_LED4]";
};

&gpio2 {
	/* GPIO_016-GPIO_023 */
	gpio-line-names =
		"GPIO-G", /* LSEC pin 29: GPIO_016_LCD_TE0 */
		"[CSI0_MCLK]", /* HSEC pin 15: ISP_CCLK0_MCAM */
		"[CSI1_MCLK]", /* HSEC pin 17: ISP_CCLK1_SCAM */
		"GPIO_019_BT_ACTIVE",
		"[I2C2_SCL]", /* HSEC pin 32: ISP_SCL0 */
		"[I2C2_SDA]", /* HSEC pin 34: ISP_SDA0 */
		"[I2C3_SCL]", /* HSEC pin 36: ISP_SCL1 */
		"[I2C3_SDA]"; /* HSEC pin 38: ISP_SDA1 */
};

&gpio3 {
	/* GPIO_024-GPIO_031 */
	gpio-line-names =
		"GPIO_024_WIFI_ACTIVE",
		"GPIO_025_PERST_M.2",
		"[I2C4_SCL]",
		"[I2C4_SDA]",
		"NC",
		"GPIO-H", /* LSEC pin 30: GPIO_029_LCD_RST_N */
		"[USER_LED1]",
		"GPIO-L"; /* LSEC pin 34: GPIO_031 */
};

&gpio4 {
	/* GPIO_032-GPIO_039 */
	gpio-line-names =
		"GPIO-K", /* LSEC pin 33: GPIO_032_CAM1_RST_N */
		"GPIO_033_PMU1_EN",
		"GPIO_034_USBSW_SEL",
		/*
		 * These two pins should be used for SD(IO) data according
		 * to the 96boards specification but seems to be repurposed
		 * for UART 0. They are however named according to the spec.
		 */
		"[SD_DAT1]", /* HSEC pin 3: GPIO_035_UART0_RXD */
		"[SD_DAT2]", /* HSEC pin 5: GPIO_036_UART0_TXD */
		"[UART1_RXD]", /* LSEC pin 13: DEBUG_UART6_RXD */
		"[UART1_TXD]", /* LSEC pin 11: DEBUG_UART6_TXD */
		"[SOC_GPS_UART3_CTS_N]"; /* TP2304 */
};

&gpio5 {
	/* GPIO_040-GPIO_047 */
	gpio-line-names =
		"[SOC_GPS_UART3_RTS_N]", /* TP2302 */
		"[SOC_GPS_UART3_RXD]", /* TP2303 */
		"[SOC_GPS_UART3_TXD]", /* TP2305 */
		"[SOC_BT_UART4_CTS_N]",
		"[SOC_BT_UART4_RTS_N]",
		"[SOC_BT_UART4_RXD]",
		"[SOC_BT_UART4_TXD]",
		"NC";
};

&gpio6 {
	/* GPIO_048-GPIO_055 */
	gpio-line-names =
		"NC",
		"GPIO_049_USER_LED6",
		"GPIO_050_CAN_RST",
		"GPIO_051_WIFI_EN",
		"GPIO-D", /* LSEC pin 26 */
		"GPIO-J", /* LSEC pin 32 */
		"GPIO_054_BT_EN",
		"[GPIO_055_SEL]";
};

&gpio7 {
	/* GPIO_056-GPIO_063 */
	gpio-line-names =
		"[PCIE_PERST_L]", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
};

&gpio8 {
	/* GPIO_064-GPIO_071 */
	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
};

&gpio9 {
	/* GPIO_072-GPIO_079 */
	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
};

&gpio10 {
	/* GPIO_080-GPIO_087 */
	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
};

&gpio11 {
	/* GPIO_088-GPIO_095 */
	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
};

&gpio12 {
	/* GPIO_096-GPIO_103 */
	gpio-line-names = "NC", "", "", "", "", "", "", "";
};

&gpio13 {
	/* GPIO_104-GPIO_111 */
	gpio-line-names = "", "", "", "", "", "", "", "";
};

&gpio14 {
	/* GPIO_112-GPIO_119 */
	gpio-line-names = "", "", "", "", "", "", "", "";
};

&gpio15 {
	/* GPIO_120-GPIO_127 */
	gpio-line-names = "", "", "", "", "", "", "", "";
};

&gpio16 {
	/* GPIO_128-GPIO_135 */
	gpio-line-names =
		"[WL_SDIO_CLK]",
		"[WL_SDIO_CMD]",
		"[WL_SDIO_DATA0]",
		"[WL_SDIO_DATA1]",
		"[WL_SDIO_DATA2]",
		"[WL_SDIO_DATA3]",
		"[ETH_ISOLATE]",
		"NC";
};

&gpio17 {
	/* GPIO_136-GPIO_143 */
	gpio-line-names =
		"[MINI1CLK_EN]", "NC", "", "", "", "", "", "";
};

&gpio18 {
	/* GPIO_144-GPIO_151 */
	gpio-line-names =
		"[SPI1_SCLK]", /* HSEC pin 9: GPIO_144_SPI3_CLK */
		"[SPI1_DIN]", /* HSEC pin 11: GPIO_145_SPI3_DI */
		"[SPI1_DOUT]", /* HSEC pin 1: GPIO_146_SPI3_DO */
		"[SPI1_CS]", /* HSEC pin 7: GPIO_147_SPI3_CS0_N */
		"[POWER_INT_N]",
		"[CDMA_GPS_SYNC]",
		"GPIO_150_PEX_INTA",
		"GPIO_151_CAN_INT";
};

&gpio19 {
	/* GPIO_152-GPIO_159 */
	gpio-line-names = "", "", "", "", "", "", "", "";
};

&gpio20 {
	/* GPIO_160-GPIO_167 */
	gpio-line-names =
		"[SD_CLK]",
		"[SD_CMD]",
		"[SD_DATA0]",
		"[SD_DATA1]",
		"[SD_DATA2]",
		"[SD_DATA3]",
		"GPIO_166_ETHCLK_EN",
		"GPIO_167_USER_LED2";
};

&gpio21 {
	/* GPIO_168-GPIO_175 */
	gpio-line-names =
		"GPIO_168_GPS_EN",
		"GPIO-C", /* LSEC pin 25: GPIO_169_USIM1_CLK */
		"GPIO-E", /* LSEC pin 27: GPIO_170_USIM1_RST */
		"GPIO-B", /* LSEC pin 24: GPIO_171_USIM1_DATA */
		"", "", "", "", "";
};

&gpio22 {
	/* GPIO_176-GPIO_183 */
	gpio-line-names =
		"[PMU_PWR_HOLD]",
		"GPIO_177_WL_WAKEUP_AP",
		"[JTAG_TCK]",
		"[JTAG_TMS]",
		"[JTAG_TDI]",
		"[JTAG_TMS]",
		"GPIO_182_FATAL_ERR",
		"NC";
};

&gpio23 {
	/* GPIO_184-GPIO_191 */
	gpio-line-names =
		"GPIO_184_JTAG_SEL",
		"GPIO-F", /* LSEC pin 28: GPIO_185_LCD_BL_PWM */
		"[I2C0_SCL]", /* LSEC pin 15: GPIO_186_I2C0_SCL */
		"[I2C0_SDA]", /* LSEC pin 17: GPIO_187_I2C0_SDA */
		"[GPIO_188_I2C1_SCL]", /* Actual SoC I2C1_SCL */
		"[GPIO_189_I2C1_SDA]", /* Actual SoC I2C1_SDA */
		"[I2C1_SCL]", /* LSEC pin 19: GPIO_190_I2C2_SCL */
		"[I2C2_SDA]"; /* LSEC pin 21: GPIO_191_I2C2_SDA */
};

&gpio24 {
	/* GPIO_192-GPIO_199 */
	gpio-line-names =
		"[SD_LED]",
		"NC",
		"[PCM_DI]", /* LSEC pin 22: GPIO_194_I2S0_DI */
		"[PCM_DO]", /* LSEC pin 20: GPIO_195_I2S0_DO */
		"[PCM_CLK]", /* LSEC pin 18: GPIO_196_I2S0_XCLK */
		"[PCM_FS]", /* LSEC pin 16: GPIO_197_I2S0_XFS */
		"",
		"[I2S2_DO]";
};

&gpio25 {
	/* GPIO_200-GPIO_207 */
	gpio-line-names =
		"[I2S2_XCLK]",
		"[I2S2_XFS]",
		"GPIO_202_PERST_ETH",
		"GPIO_203_PWRON_DET",
		"GPIO_204_PMU1_IRQ_N",
		"GPIO_205_SD_DET",
		"GPIO_206_GPS_MOTION_INT",
		"GPIO_207_HDMI_SEL";
};

&gpio26 {
	/* GPIO_208-GPIO_215 */
	gpio-line-names =
		"GPIO-A", /* LSEC pin 23: GPIO_208_WAKEUP_SOC */
		"GPIO_209_VBUS_TYPEC",
		"NC",
		"NC",
		"NC",
		"[SPI0_SCLK]", /* LSEC pin 8: GPIO_213_SPI2_CLK */
		"[SPI0_DIN]", /* LSEC pin 10: GPIO_214_SPI2_DI */
		"[SPI0_DOUT]"; /* LSEC pin 14: GPIO_215_SPI2_DO */
};

&gpio27 {
	/* GPIO_216-GPIO_223 */
	gpio-line-names =
		"[SPI0_CS]", /* LSEC pin 12: GPIO_216_SPI2_CS0_N */
		"GPIO_217_HDMI_PD",
		"GPIO_218_GPS_WAKEUP_AP",
		"GPIO_219_M.2CLK_EN",
		"GPIO_220_PERST_MINI",
		"GPIO_221_CC_INT",
		"[PCIE_CLKREQ_L]",
		"NC";
};

&gpio28 {
	/* GPIO_224-GPIO_231 */
	gpio-line-names =
		"[PMU0_INT]",
		"[SPMI_DATA]",
		"[SPMI_CLK]",
		"[CAN_SPI_CLK]",
		"[CAN_SPI_DI]",
		"[CAN_SPI_DO]",
		"[CAN_SPI_CS]",
		"GPIO_231_HDMI_INT";
};

&dwmmc1 {
	bus-width = <0x4>;
	sd-uhs-sdr12;
	sd-uhs-sdr25;
	sd-uhs-sdr50;
	sd-uhs-sdr104;
	cap-sd-highspeed;
	disable-wp;
	cd-inverted;
	cd-gpios = <&gpio25 5 GPIO_ACTIVE_HIGH>;
	pinctrl-names = "default";
	pinctrl-0 = <&sd_pmx_func
		     &sd_clk_cfg_func
		     &sd_cfg_func>;
	vmmc-supply = <&sd_3v3>;
	vqmmc-supply = <&sd_1v8>;
	status = "okay";
};

&dwmmc2 { /* WIFI */
	bus-width = <0x4>;
	non-removable;
	broken-cd;
	cap-power-off-card;
	pinctrl-names = "default";
	pinctrl-0 = <&sdio_pmx_func
		     &sdio_clk_cfg_func
		     &sdio_cfg_func>;
	/* WL_EN */
	vmmc-supply = <&wlan_en>;
	status = "ok";

	wlcore: wlcore@2 {
		compatible = "ti,wl1837";
		reg = <2>;      /* sdio func num */
		/* WL_IRQ, GPIO_177_WL_WAKEUP_AP */
		interrupt-parent = <&gpio22>;
		interrupts = <1 IRQ_TYPE_EDGE_RISING>;
	};
};

&uart0 {
	/* On High speed expansion header */
	label = "HS-UART0";
	status = "okay";
};

&uart2 {
	/* On Low speed expansion header */
	label = "LS-UART0";
	status = "okay";
};

&uart6 {
	/* On Low speed expansion header */
	label = "LS-UART1";
	status = "okay";
};
